Forwarded: [PATCH] Fix warning empty list in svc_destroy

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Subject: [PATCH] Fix warning empty list in svc_destroy
Author: drifabdelmalekmohamedsaid@gmail.com

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index bc282b744f34..ebcca3dd1269 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -60,8 +60,15 @@ static int nfs4_callback_up_net(struct svc_serv *serv, struct net *net)
 		nn->nfs_callback_tcpport6 = ret;
 		dprintk("NFS: Callback listener port = %u (af %u, net %x)\n",
 			nn->nfs_callback_tcpport6, PF_INET6, net->ns.inum);
-	} else if (ret != -EAFNOSUPPORT)
+	} else if (ret != -EAFNOSUPPORT) {
+		struct svc_xprt *xprt = svc_find_xprt(serv, "tcp", net, PF_INET,
+			     nn->nfs_callback_tcpport);
+		if (xprt) {
+			svc_xprt_close(xprt);
+			svc_xprt_put(xprt);
+		}
 		goto out_err;
+	}
 	return 0;
 
 out_err:
-- 
2.47.3